“We’re very close with Vargas. Vargas is sceptical of coming, Top Rank [Vargas’ promoters] know us, they brought Terence Crawford over against Ricky Burns [in 2014], they know how they’ll be treated,” Hearn told Boxing News.

“But Vargas isn’t totally comfortable travelling to someone’s backyard for a unification fight. But it is for a lot of money. I think it works well for both guys. I would say we’ll probably make a deal either this week or early next week.”

In March, he turned in a career-best performance to stop the highly-touted Sadam Ali in nine rounds to lift the vacant strap.

It now looks as though the 27-year-old is on the verge of agreeing terms and will make his first professional outing in the UK. BN understands that the show will be Sky Sports Box Office pay-per-view and that Chris Eubank Jr will appear on the undercard.

If that is the case, it would be the second time Brook has headlined a PPV card after he topped a stacked bill at the O2 Arena last May, which featured Anthony Joshua, Lee Selby and Kevin Mitchell’s war with Jorge Linares.